Perfect Protection of Machines and Systems
Our comprehensive range of SIRIUS monitoring relays ensures reliable system protection against damage. Current measured values or conclusive diagnostics messages are indicated on the device display. For easy connection to the control, most monitoring relays are also available with IO-Link interface.
We offer various monitoring relays, matched to your requirements:
3UG4 and 3RR2 Monitoring Relays
SIRIUS 3UG4 and 3RR2 monitoring relays facilitate the monitoring of various electrical and mechanical parameters in the feeder and provide protection against damage. The relays can be mounted in a stand-alone assembly (3UG4) or alternatively, the 3RR2 current monitoring relays can be directly integrated into the feeder with plug-in mounting on SIRIUS 3RT2 contactors. In addition to easy mounting, SIRIUS monitoring relays feature freely parameterizable threshold values and adjustment options, and can also provide conclusive diagnostics. Hear more from a customer; Ecoclean, a leading global supplier of robotic washers for the automotive industry. Ecoclean needed to find a simple way to monitor the health of their heating elements in their washers. After installing 3RR relays, Ecoclean gained operating insights for conditioned-based maintenance, preventing bottlenecks and disruptions. Read more.
Versions are also available with IO-Link interface for connection to the control. Find out more: www.siemens.com/io-link. Monitoring relays are available for the following applications:
Time and space savings:
Customary screw-type and modern spring-loaded connection systems for rapid and reliable wiringRapid commissioning thanks to menu-guided parameterization and actual value display for limit value determinationReduced space requirements in the control cabinet thanks to a consistent width of 22.5 mm (3UG4)Direct mounting on SIRIUS 3RT2 contactors (3RR2) Flexibility:Parameterizable monitoring functions, delay times, reset behavior, etc.Reduced warehousing thanks to minimized variance and large measuring rangesWide-voltage power supply units for global applicability High system availability:Device replacement without renewed wiring thanks to removable terminalsReliable system diagnostics thanks to actual value display and connectable fault memoryRapid diagnostics thanks to conclusive fault messages on the displayConnection to the control via IO-Link
Watch how the multi-phase current monitoring relays now integrate with IO-Link:
Prevent overheating with 3RN1 Thermistor Motor Protection
Thermistor motor protection relays provide decisive advantages wherever current-dependent protection by means of circuit breaker or overload relay does not offer the perfect monitoring solution: In some cases, mostly as a result of external effects, overheating can occur without being detected by the thermal image in the circuit breaker or overload relay. Examples include heavy-duty starting (e.g. centrifuges), operation with frequency converters or frequent switching, braking operations or impeded cooling, due to a dirty environment.
3RS1 Temperature Monitoring Relays
The temperature of solid, liquid and gaseous media represents the most frequently measured parameter in industrial applications. Not least because of this fact do SIRIUS temperature monitoring relays serve as the ideal devices for system protection. They monitor process temperatures just as reliably as the temperature inside control cabinets or motors – if required even with up to three sensors at the same time. Analog and digital versions are available to suit various requirements.
Analog and digital versions are available:
Watch how the temperature monitoring relays now integrate with IO-Link:
SIRIUS Monitoring Relays
Seamless Industrial Communication SIRIUS speaks IO-Link
With the SIRIUS monitoring relays for IO-Link, you opt for maximum flexibility: In addition to the unchanged autonomous monitoring function, measured values and data can be directly transferred to the control via IO-Link. Also parameterization can either be realized locally or via IO-Link.
SIRIUS monitoring relays for IO-Link:
SIRIUS 3RR24:3-phase current monitoring directly in the feeder
SIRIUS 3UG48:Monitoring of electrical and mechanical parameters: Voltage, current, power factor and speed
SIRIUS 3RS14/15:Monitoring of temperatures
The open communication standard IO-Link offers the following advantages with the monitoring of electrical and further parameters:
Connection to the control level via IO-Link, resulting in full integration in Totally Integrated Automation, the open system architecture for integrated automation
Central fault diagnostics and localization
Eased commissioning thanks to local parameterization in the system or central parameterization with extended options and PC comfort
Eased device replacement thanks to automatic data comparison and reparameterization via parameter server
Efficient energy management: Support of the data formats defined in the PROFIenergy profile. More information about energy efficiency and PROFIenergy at Siemens: www.siemens.com/energy-efficient-production
For more information on IO-Link with Siemens please visit: www.siemens.com/io-link.